TMC2330A

www.fairchildsemi.com TMC2330A Coordinate Transformer 16 x 16 Bit, 40 MOPS Features Rectangular-to-Polar or Polar-to-Rectangular conversion at guaranteed 40 MOPS pipelined throughput rate Polar data: 16-bit magnitude, 32-bit input/16-bit output phase 16-bit user selectable two’s complement or sign-andmagnitude rectangular data formats Input register clock enables and asynchronous output enables simplify interfacing User-configurable phase accumulator for waveform synthesis and amplitude, frequency, or phase modulation Magnitude output data overflow flag (in Polar-toRectangular mode) Low power consumption CMOS process Single +5V power supply Available in a 120-pin plastic pin grid array package (PPGA), 120-pin ceramic pin grid array package (CPGA), 120-pin MQFP to PPGA (MPGA) package, and 120-pin metric quad flatpack package (MQFP) Description The TMC2330A VLSI circuit converts bidirectionally between Cartesian (real and imaginary) and Polar (magnitude and phase) coordinates at up to 40 MOPS (Million Operations Per Second). In its Rectangular-to-Polar mode, the TMC2330A can extract phase and magnitude information or backward “map” from a rectangular raster display to a radial (e.g., range-and-azimuth) data set. The Polar-to-Rectangular mode executes direct digital waveform synthesis and modulation. The TMC2330A greatly simplifies real-time image-space conversion between the radially-generated image scan data found in radar, sonar, and medical imaging systems, an...